Gas-lighting apparatus.



G.'B. COLLIER, GAS LIGHTING APPARATUS. APPLICATION I'ILBD DBO. 4. 1914.k

Patenwd 3@, m5.

B. CQLLIEE, F KINDERHBQK, NEW HOME.

HAB LIGHTING APPARATUS.

flpectfieation of. Letters Instant.

mo est.

- scription of the invention, such as'will ennt predetermined intervals.

ehle others skilled in the art to which it W ertains to make and use thesame.

"lhe present invention relates to gas lighting apparatus and moreparticularly to appamtus of this type which automatically lights andextinguishers the main gas burner In eppsratus of this type the openingand closing movements of the gas valve are ordinarily accomplished bygravity, the actuating memher being brought into position in which itmay operate my suitable time controlled mechanism. With. thisconstruction the ap parutus must be permanently located in one positionand any deviation from this position. causes it variation in the time ofhghtingnnd extinguishing the gas, furthermore, the operation of thevalve controlling 1nechenism may be infected by jarring or vibra tionsufilcientlv to vary the time of light-- inn and extinguishing the gasaiiconsiderable amount.

The object of the present invention is to provide on improved mechanismof this character which causes abrupt opening and closing movements ofthe valve at predetermined intervals and which will operate for a. longcontinued period without attention.

A. further object of the invention relates to certain improvedconstructions and arrangements whereby the assembling of the apparatusin operative position is facili' tsted and the timing of the opening andclosing movements of the valve accurately controlled With these objectsin View the several features of the ll'lVG'illlOll consist in certainnovel features of construction, combine tions and arrangements of partshereinnfter described and claimed, the advantages of which will heobvious-t0 those skilled in the art from the following description.

[ing the preferred form of the invention;

.l igurc 1 is o-view' illustrating an elevation of the improved lightingand extinguis mg mechanism; and Fig. 2 is o side elenomination filedDecember 4;, lfllit.

. position to engage with the mini.

Peitenteol lli'ni no, new.

term). so. 8t'5,&5t?.

vation partly in section of the mechanism shown in Fig.1.

' The present invention is preferehly shown in connection with alighting apps.- retus of the type shown and described in the co-pendingapplication of applicant, Scr. N 0. 836,884, filed May. 7', 191%. Inthis apparatus a timing gear 1. is actuated from a suitable clock trainnot shown, to make one complete rotation during each twentyfour hours.This timing gear is connected with a valve shsft 8 supported in sheering indicated at 4 and oscillated at predetermined intervals to opensr-i ilose the main gas valve in the usual manner.

The mechnnism. shown in the illustrated embodiment of the inventionserves to impert abrupt opening and closing movements to the valve zitpredetermined. intervals controlled by the main timing gear andindependent of the position of the apparatus, To this end on actuatinglever 5 is supported upon a. shaft 6 and is provided with. oppositelyextending arms 7 end 8 which engage respectively with the operatingdogs,

10 and 11 adjusteblji secured to the timing gear 1. It will he notedifrom an inspection.

of the drawings that the engagement of the dog 10 with the arm 7 servesto rock the actuating lever to the left, and upon 2. con tinued rotationof the gear 1 the engagement of the dog 11 with the arm 8 serves to rockthe actuating lever in the opposite direction. To this end the dog ll.is elon-.

gated and provided with on interned end 12 which projects over andengages withv an outwardly projecting finger 13 formed upon the arm 8.The dogs 10 and 11 serve respectively to control the time of-lightingand extinguishing the main gas burner, and in order to very theseintervals as desired the dogs are adjustnhly connected to the time Thedog 10 is secured in a. circumferential slot 15 formed in the gear andprojects rearwsrdly through the slot into n The dog 11 is supported uponthe gear sheft in front of the gear, as shown clearly in Fig. 2., inposition to engage with the out-turned end 13 of the arm 8. Both dogsare adjusted in the usual manner through. the provision of ports a.suitnlole weight it; which facilinitee fig I assess? the operatingmovements of the lever as hereinafter described. The actuating lever 5coiiperates with a weighted valve lever 18 which is supported upon ashaft 19 located parallel to the shaft 6, and is provided withoppositely extending arms 20 and 2i formed integral therewith. The arms20 and 21 are engaged by the lever 5 at predetermined intervals tooscillate the valve lever 18 and open and close the valve. For thispurpose the outer ends of the arms 20 and 2]. are provided withprojections 23 and 24: formed thereon, which engage respectively withthe lever 5, as shown clearly in Fig. 1. The actuating lever, as statedpreviously, has abrupt valve opening and closing movements impartedthereto and the purpose of the time gear is to move the actuating leverat predetermined intervals into a position where these opening andclosing movements may take place. In the illustrated embodiment of theinvention when the valve is opened or closed the lever is normallyretained in an inclined position and the move ment of the timing gearserves to gradually elevate the lever from one of these two inclinedpositions to a vertical position. When the lever reaches thisverticalposition mechanism is provided for abruptly rocking it into an inclinedpositidn and atthe same time actuating the valve lever 18. To this end acontrol member is supported in operative relation to the lever and isarranged to operatively engage with the lever to first release andthenmove the lever at predetermined intervals. The control member servesto-accurately determine the time at which the gas valve is opened andclosed. nde; pendently of the positionof the 111313;, ItllS- 40 or ofexternal conditions which might otherwise effect the operation of thevalve actuat ing lever. Some diiliculty has been OXIDQIl enced with thegravity operated mechanism as with this construction external conditionstending to cause a jarring or vibration of the mechanism when theactuating lever has nearly reached a vertical position will cause theoperation of the lever before the predetermined time, thus varying theopening or closing-movements of the gas valve. As the movements of theactuating lever are relatively slow this variation may assume considerable proportions In the present construction the controlling armperforms the function of accurately determining the time at which theactuating lever is moved to open or close the valve, and further aidsthe weighted arms in retaining the valve in open or closed position. Anarm 25 is fnlcrumed upon a shaft 26 suppor d in the back plate 27 of themachine and the arm is provided upon its free end with a wedge shapedface 28 which engages with a pin 30 projecting from the actuating lever5. The free end of the lever is normally pressed against the pin by acoiled spring 31 surrounding the shaft 26, as shown clearly in Fig. 2.With this construction, as the actuating lever is slowly elevated to avertical position by the timing gear the pin 30 moves along one face ofthe wedge until the point of the wedge reached, when a further movementcauses the pin to engage with the opposite face of the wedge and anabrupt movement is then imparted to the lever by the spring 31. ll henthe aiiwtnating lever is again moved to open or close the valve, thisaction is repeated. the pin. 30 sliding along the opposite face of thewedge until the apex is reached. With this construction it will benot/ed that the valve opening and closing movements are imparted when.the pin 30 reaches the apex of the wedge shaped face and this movementtakes place independently of whether the actuating lever is in avertical or an inclined position. In order to limit the range ofmovement of the moving parts and permit the convenient assembling of theapparatus the valve lever 18 is provided with a sh). which receives apin 33 secured in the back plate of the machine and serving to limit theoscillatory movement of the. valve lever in opposite directions. orderto permit the rocking movement of the valve lever 18 without causing thearm 20 to interfere with the arm the controlling arm provided with arecess 35 in its upper face. which permits the rocking of the lever tothe left into an inclined position.

In. assembling the apparatus it is desirable to have, provision foradjustment of the valve shaft and valve relative to the valve lever.thus enabling the opened and closed positimis of the valve to be readilyadjusted with relation to corresponding positions of the valve lever 18.To this end a sleeve 36 is secured to the ou er end of the valve shaftby a set screw and is provided with an arm 38 in which an adjustingmember 39 joinnaled. The valve shaft is connected to the valve lever bya bell crank supported upon the sleeve and having an out-turned arm 40which engages with a slot 41 formed in the actuating lever, and a secondarm 42 which is adjustably connected with the arm 38. v

It will be observed from an inspection'of Fig. 2 that the timecontrolling and valve actuating; mechanism is all supported upon theback plate 27 and is connected with the valve shaft by means of the arm1-0 which is received in the slotted portion of the valve lever 18. Bymeans of this connection the back plate carrying the entire mechanismmay be readily removed and replaced whenever desired without disturbingthe val e shaft and connecting arm. I

The arm 42 is provided with a lengthwise slot 43 which receives a pin 45mounted eelill centricelly in the rotary adjusting member 39 in orderthat rotation of the adjusting member shall vary the angular relation ofthe arms 38 and 4-12. The two arms frictionally engage with one anotherin order to retain them in any adjusted position and the edjustin,member is conveniently provided with e s otted head it for the receptionor any suitable instrumentality With this construction the position ofthe valve end valve shaft 3 may be conveniently adjusted with relationto e corresponding position of the valve lever 18 to permit the readyassembling of the apparatus.

While it is preferred to employ the spe cilic construction andarrangement of parts shown and described, it will be understood thatthis construction and erran genient is not essential except so far asspecii ed in the claims, and may be changed or modified withoutdeparting from the broader features of the invention.

The invention having been described, What is claimed is:

l. A gas lighting apparatus, having in combination, a valve shaft, atime gear, on actuating lever, connections between the lever and timegear for oscillating the lever in opposite directions at predeterminedintervals, and mechanism for mechanically imparting abrupt inovements tothe lever when it is moved into a predetermined position by the timegear.

Q-l. gas lighting apparatus, having in combination, a velveshait, a timegear, on actuating lever, 21 valve lever, connections between the timegear and actuating lever, mechanism. for mechanically importing valveopening and closing movements to the actuating lever when in apredetermined position, and mechanism for moving the valve lever whenthe actuating lever is moved to open or close the valve,

g as lighting epperntus, having in combination, a valve shaft, a timegear, on

actuating lever, connections between the ec tuating'le'ver and time gearfor oscillating the actuating lever in opposite directions atpredetermined intervals, a controlling arm for the actuating lever, andmeans for causing the arm to impart abrupt movements to the actuatinglever when it is moved into a predetermined position.

4. A gee lighting apparatus, her ing; combination, n, valve shaft, atime gear, en actuating lever, connections between the tueting lever andtime gear for oscillating the actuating lever in opposite directions atpredetermined intervals, an arm pivoted ct one end and having its freeend positioned in operative relation to the actuating lever, o springnormally tending to press the arm against the actuating lever, andconnections between the free end of the arm and the actuating lever forcausing-the arm. to impart abrupt movements to the ectuatin lever.

5. A gas lighting apparatus, "leaving in combinetiom. a valve shaft, ittime gear, on actuating lever, connections between the time gear andactuating lever for oscillating the lever in opposite directions, an armhaving a Wedge shaped face, a pin securedto the lever and engaging withthe face'cnd a.

spring constantly tending to maintain, the free end of the arm inengagement with the I pin.

6. gas lighting apparatus, comprising av time gear, on actuating lever,connections between the actuating lever and time ear for oscillating thelever in opposite directions at predetermined. intervals, an oscillatoryvalve lever having a slot formed therein, a stationary pin received inthe slot to limit the movements of the velve lever, operativeconnections between the actueting lever and valve lever, and mechenisrnfor imparting ebru pt movements to the actuating lever.

7. A gas lighting apparatus comprising a valve shaft, a time gear havinga circumferential slot formed therein, an actuating till lever,oppositely extending arms connected to the actuating lever, a dogodjustubly secured in the slotted portion of the time gear andprojecting rearwardly from the into a position to engage with one of thearms, a second dog supported in front of the gear and arranged to engagewith the sec- 0nd arm, connections between the actuating lever and valveshaft, and mechanism for imparting abrupt valve opening and closingmovements to the actuating leveru.

GUY B. CQLLIER. Witnesses:

BURTON V7. CARY, MAY A. HURLEY.

Hill

